[Effect of short-term application of a lactate-containing probiotic on the pharyngeal microflora in healthy subjects].

Daily dynamics of pharyngeal microflora was evaluated in the absence of preventive treatment and using a local lactate-producing probiotic preparation during 24 hour-long simulated microgravity. The study showed that the short-term application of the local lactate-producing probiotic (four times daily) significantly reduced titers of opportunistic pathogenic microflora and increased the amount of symbionts in the pharynx.